Bird swing for cage



FIG. 1 is a perspective view of a bird swing for cage;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof; the rear view being a mirrorimage thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The ornamental design for a bird swing for cage, as shown and described.